/**
 * 
 */
package t4j.arrays;

import java.util.Arrays;


public class CopyingArrays {

	public static void main(String[] args) {
		int[] i = new int[7];
		
		int[] j = new int[10];
		
		Arrays.fill(i, 47);
		
		Arrays.fill(j, 99);
		
		System.out.println("i = " + Arrays.toString(i));
		
		System.out.println("j = " + Arrays.toString(j));
		
		System.arraycopy(i, 0, j, 0, i.length);//i从0开始，j从0开始，把i复制到j,个数是i.length
		
		System.out.println("j = " + Arrays.toString(j));
		
		int[] k = new int[5];
		
		Arrays.fill(k, 103);
		
		System.arraycopy(i, 0, k, 0, k.length);
		
		System.out.println("k = " + Arrays.toString(k));
		
		Arrays.fill(k, 103);
		
		System.arraycopy(k, 0, i, 0, k.length);
		
		System.out.println("i = " + Arrays.toString(i));
		
		Integer[] u = new Integer[10];
		
		Integer[] v = new Integer[5];
		
		Arrays.fill(u, new Integer(47));
		
		Arrays.fill(v, new Integer(99));
		
		System.out.println("u = " + Arrays.toString(u));
		
		System.out.println("v = " + Arrays.toString(v));
		
		System.arraycopy(v, 0, u, u.length/2, v.length);
		
		System.out.println("u = " + Arrays.toString(u));
	}
}
